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CMB 21 Valvola Tuned Pipe?

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CMB 21 Valvola Tuned Pipe?

Old 12-25-2006, 07:56 PM
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007clint
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Default CMB 21 Valvola Tuned Pipe?

What tuned pipe is suggested for a CMB 21 Valvola in a Hydro Sport 20?

What kind of options do I have?

Do you actually have to decide if you want just top-end or mid-range torque?

Muffled vs. Regular? Carbon Fiber Versus Aluminum? Fat versus Skinny?

Decisions, Decisions.......
Old 12-25-2006, 08:59 PM
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Ron Olson
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Default RE: CMB 21 Valvola Tuned Pipe?

The CMB TT pipe is a nice one as it's very quiet and low-priced for a pipe. The other option would be a MAC pipe from www.cmdracing.com . If you call down there don't be afraid to talk to the ladies answering as they do know their stuff.
Old 12-25-2006, 10:50 PM
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gooycheese
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Default RE: CMB 21 Valvola Tuned Pipe?

Im not really sure this pipe will apply here but I was told that a very good pipe for a .21 is an ops 3280 it is just a reg tuned pipe(not fat ,thin or muffled ) lol


Paul

Ron would know if this would be a good pipe for this engine for sure
Old 12-25-2006, 11:09 PM
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Ron Olson
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Default RE: CMB 21 Valvola Tuned Pipe?

The OPS 3280 is also a very loud pipe out of the box but with slight mods it can be used. I used one on my .21 mono and sold it because of the noise it produced.
The modification is simple, get a length of brass tuing that will go as far as where the convergent/divergent cones meet that fits inside the exhaust pipe and use some JB Weld to hold it in place.

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